631123626587 has 8 divisors (see below), whose sum is σ = 668325240432. Its totient is φ = 593930534400.

The previous prime is 631123626577. The next prime is 631123626593. The reversal of 631123626587 is 785626321136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631123626587 - 2¹⁰ = 631123625563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631123626527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977614 + ... + 2274467.

It is an arithmetic number, because the mean of its divisors is an integer number (83540655054).

Almost surely, 2^631123626587 is an apocalyptic number.

631123626587 is a deficient number, since it is larger than the sum of its proper divisors (37201613845).

631123626587 is a wasteful number, since it uses less digits than its factorization.

631123626587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260829.

The product of its digits is 2177280, while the sum is 50.

The spelling of 631123626587 in words is "six hundred thirty-one billion, one hundred twenty-three million, six hundred twenty-six thousand, five hundred eighty-seven".